:If you mean performing a " single " encryption on multiple cores, it's very difficult to properly parallelise most symmetric encryption functions, as they display the avalanche effect very strongly ( quite deliberately-that's from where much of their security is derived ).
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Another concern is that the avalanche effect is slower to occur in GOST than in DES . This is because of GOST's lack of an expansion permutation in the round function, as well as its use of a rotation instead of a permutation.
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In cryptography, the "'avalanche effect "'is the desirable property of cryptographic algorithms, typically block ciphers and cryptographic hash functions wherein if when an input is changed slightly ( for example, flipping a single bit ) the output changes significantly ( e . g ., half the output bits flip ).
